Panasonic SA-AK520E Service Manual page 61

13.3. Cassette Mechanism Test (For error code H01, H02, H03, F01,
F02)
1. Press "TAPE, DECK 1/2" to select Deck 2.
2. Load a cassette tape with the erasure prevention tab, remove from
left side only and close the cassette holder.
3. Press "FAST FORWARD MEMORY" (Tape will be stop after 2
seconds)
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